TL-SL3428_V3_User_Guide - TP-Link

Chapter 12 SNMP‣ SNMP OverviewSNMP (Simple Network Management Protocol) has gained the most extensive application on theUDP/IP networks. SNMP provides a management frame to monitor and maintain the networkdevices. It is used for automatically managing the various network devices no matter the physicaldifferences of the devices. Currently, the most network management systems are based on SNMP.SNMP is simply designed and convenient for use with no need of complex fulfillment proceduresand too much network resources. With SNMP function enabled, network administrators can easilymonitor the network performance, detect the malfunctions and configure the network devices. Inthe meantime, they can locate faults promptly and implement the fault diagnosis, capacity planningand report generating.‣ SNMP Management FrameSNMP management frame includes three network elements: SNMP Management Station, SNMPAgent and MIB (Management Information Base).SNMP Management Station: SNMP Management Station is the workstation for running theSNMP client program, providing a friendly management interface for the administrator to managethe most network devices conveniently.SNMP Agent: Agent is the server software operated on network devices with the responsibility ofreceiving and processing the request packets from SNMP Management Station. In the meanwhile,Agent will inform the SNMP Management Station of the events whenever the device statuschanges or the device encounters any abnormalities such as restarting the device.MIB: MIB is the set of the managed objects. MIB defines a few attributes of the managed objects,including the names, the access rights, and the data types. Every SNMP Agent has its own MIB.The SNMP Management station can read/write the MIB objects basing on its management right.SNMP Management Station is the manager of SNMP network while SNMP Agent is the managedobject. The information between SNMP Management Station and SNMP Agent are exchangedthrough SNMP (Simple Network Management Protocol). The relationship among SNMPManagement Station, SNMP Agent and MIB is illustrated in the following figure.‣ SNMP VersionsFigure 12-1 Relationship among SNMP Network ElementsThis switch supports SNMP v3, and is compatible with SNMP 1 and SNMP v2c. The SNMPversions adopted by SNMP Management Station and SNMP Agent should be the same.Otherwise, SNMP Management Station and SNMP Agent can not communicate with each othernormally. You can select the management mode with proper security level according to your actualapplication requirement.166